Mac Pro (2010) too many audio devices after adding 2 x 27" LED Cinema disp

Can anyone tell me how to re-prioritize the list of audio devices shown in system preferences or Audio MIDI support?
REALLY, what I'd prefer is a way to completely disable audio devices that I absolutely do not need.
I am having some 3rd-party software issues with some software that cannot cope with the long list of audio devices, but I would expect that if I could remove unnecessary devices or at least change the order in which they are presented to software, I might be able to workaround the issues with the third party apps.
Everything was fine before I installed two new 27" LED Cinema Displays, which together bring four new audio OUT devices and two new audio IN devices.
I would like to disable all four audio OUT devices...in fact I would like to be able to disable several of the Mac Pro built-in audio devices that I will never use.
Here's the list of audio devices that I now have:
Internal Speakers
Line Out
Digital Out
LED Cinema
LED Cinema
Display Audio
Display Audio
GN 9350
A key 3rd-party app (with whom I am also filing a bug) only shows these choices in the "Audio output" pull-down:
Built-in Digital Output Digital Out
Built-in Line Output Line Out
Built-in Output Internal Speakers
Display Audio
Display Audio #2
Display Port LED Cinema
GN 9350
So when I try to choose GN 9350, what I get instead is "Display Port LED Cinema" -- I think the problem is that really the list should be:
Built-in Digital Output Digital Out
Built-in Line Output Line Out
Built-in Output Internal Speakers
Display Audio
Display Audio #2
Display Port LED Cinema
Display Port LED Cinema #2
GN 9350
If the above list was actually being shown properly, then I would HOPE that I could actually choose GN 9350 and have it stick.
But until I can get the 3rd party app fixed, I would like to know how to get the Mac Pro to either change the order of the devices as presented/listed, or to (preferably) let me completely DISABLE unneeded devices.

Thanks... But I do still want to be able to use the built-in iSight and the USB hubs.

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